Comment by massacre0520

My best guess would be that this is a rep shoulder enchant similar to the current cataclysm shoulder enchant earned by achieving an exalted status with therazane. Other than that, there is no current information as to whom we would earn this from, though 1 thing I'd note is there is a very very large increase in stat values from cataclysm moving into MoP(noting the 490 strength from this enchant compared to Greater Inscription of Jagged Stone ).

Edit: I've been told that this one is actually supposed to be agility but my guess still remains valid.

Comment by Zoeteklem

That said, MoP will introduce a new way of enchanting your shoulders. Scribes will now take the task of enchanting shoulders, previously it would typically require a rep requirement/grind.

MoP:Inscription FTW: Now everyone has to get their enchants from the scrolls that Scribes make. Scribes still get their "scribe specific" enchants. See below:(Note: Most likely, the more powerful the enchant is, the more (rare) mats required for it are.)

Comment by Ro0ni

Comment by Mizane

Start of a new twinkage.

Comment by Danish

You can now apply this to heirloom shoulders. I had one of my level 90 chars apply it on Supple Shadowcraft Spaulders for my druid who is currently level 70. The effect is scaled down to +10 Agility and +5 Critical Strike. Presumably it will scale automatically as I level up.

Edit: At level 71 it scaled to +20 Agility and +10 Critical Strike.

Comment by saillaw

Warning: if you twink, don't upgrade your shoulder or leg heirlooms more than once or you will not be able to apply this enchant anymore with your level 100 toons.

Why? An heirloom that is upgraded 2/2 is ilvl 605 when you are level 100, meaning that your main cannot apply this enchant (cannot be applied to Tim's higher than ilvl 600) to the 2/2 heirloom and mail it to your Twink. If it is only upgraded once, (I.e. So the heirloom is 1/2 ..works till level 90) then you can still apply it.

If you were not aware of this and upgraded your legs and shoulders like I did, then you can still apply the enchant if you have another toon that is greater than level 85 but less than 99. But otherwise you are screwed, and according to a GM ticket response, it is not possible to un-upgrade an heirloom.